99% Purity Natural Trans-resveratrol Pharmaceutical Grade Polygonum

What the brand says

Sold as “99% Purity Natural Trans-resveratrol Pharmaceutical Grade Polygonum Cuspidatum Root Extract Powder Giant Knotweed 501-36-0”

Resveratrol is a non-flavonoids phenolic substance, which belongs to the plant antitoxin of the astragalus compound. Resveratrol is a substance that plants make to fight off invasion by bacteria or fungi. PuroNature's resveratrol is mainly derived from the root of Polygonum cuspidatum extract. Resveratrol is a naturally occurring phytoalexin produced by some higher plants in response to injury or fungal infection. In vitro and animal studies suggest that a high resveretrol intake is associated with a reduced incidence of cardiovascular disease and a reduced risk for cancer. Resveratrol (molecular formula: C14H12O3, CAS number: 501-36-0, also known as 3,5,4′-trihydroxy-trans-stilbene) is a substance naturally found in common foods, such as wine, grapes and several types of berries in tiny amounts.